<header class="mui-bar mui-bar-nav  index-header" {{$attr ?? ''}}>
    <a class="mui-action-back mui-icon mui-icon-left-nav mui-pull-left mui-text-bai" href='javascript:;'
       onclick="javascript:window.history.back();return false;"></a>
    <h1 class="mui-title mui-text-bai">{{$page_title}}</h1>
    {{$btn ?? ''}}
</header>